78335369361 has 12 divisors (see below), whose sum is σ = 115286015988. Its totient is φ = 51238228704.

The previous prime is 78335369347. The next prime is 78335369377. The reversal of 78335369361 is 16396353387.

78335369361 is a `hidden beast` number, since 78 + 3 + 3 + 536 + 9 + 36 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35669988225 + 42665381136 = 188865^2 + 206556^2 .

It is not a de Polignac number, because 78335369361 - 2⁶ = 78335369297 is a prime.

It is a super-2 number, since 2×78335369361² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78335369298 and 78335369307.

It is not an unprimeable number, because it can be changed into a prime (78335368361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82112070 + ... + 82113023.

It is an arithmetic number, because the mean of its divisors is an integer number (9607167999).

Almost surely, 2^78335369361 is an apocalyptic number.

It is an amenable number.

78335369361 is a deficient number, since it is larger than the sum of its proper divisors (36950646627).

78335369361 is a wasteful number, since it uses less digits than its factorization.

78335369361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164225152 (or 164225149 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 54.

The spelling of 78335369361 in words is "seventy-eight billion, three hundred thirty-five million, three hundred sixty-nine thousand, three hundred sixty-one".